2+b×9-25=40
(c-104+2)×5+3=98.
(b×4+20);4=12
36-42;e:(15%3-4:1)-20=10
11-(7x5-9x9:F:3):8=7
22-5X(38-4XG)=12
26+(6XH-7X3):9=27
Răspunsuri la întrebare
2 + b × 9 - 25 = 40
2 + b × 9 = 40 + 25
b × 9 = 65 - 2
b × 9 = 63
b = 63 : 9
b = 7
( c - 104 + 2 ) × 5 + 3 = 98
( c - 104 + 2 ) × 5 = 98 - 3
( c - 104 + 2 ) × 5 = 95
c - 104 + 2 = 95 : 5 = 19
c - 104 = 19 - 2
c - 104 = 17
c = 17 + 104
c = 121
(b × 4 + 20): 4=12
b × 4 + 20 = 12 × 4
b × 4 + 20 = 48
b × 4 = 48 - 20
b × 4 = 28
b = 28 : 4
b = 7
36 - 42 : e : ( 15 : 3 - 4 : 1 ) -20 = 10
36 - 42 : e : ( 5 - 4 ) - 20 = 10
36 - 42 : e : 1 = 10 + 20
42 : e : 1 = 36 - 30
42 : e : 1 = 6
42 : e = 6 × 1
e = 42 : 6
e = 7
11 - ( 7 x 5 - 9 x 9 : f : 3 ) : 8 = 7
11 - ( 35 - 81 : f : 3 ) : 8 = 7
( 35 - 81 : f : 3 ) : 8 = 11 - 7
( 35 - 81 : f : 3 ) : 8 = 4
35 - 81 : f : 3 = 4 × 8 = 32
81 : f : 3 = 35 - 32 = 3
81 : f = 3 × 3
f = 81 : 9
f = 9
22 - 5 x ( 38 - 4 x g )=12
5 x ( 38 - 4 x g ) = 22 - 12
5 x ( 38 - 4 x g ) = 10
38 - 4 × g = 10 : 5 = 2
4 × g = 38 - 2 = 36
g = 36 : 4
g = 9
26 + ( 6 x h - 7 x 3 ) : 9 = 27
( 6 × h - 21 ) : 9 = 27 - 26
6 x h - 21 = 1 × 9
6 x h = 9 + 21
6 x h = 30
h = 30 : 6
h = 5